Technical data

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3.3.13. Washing the Filter Elements of the Starting Engine Air Cleaner
Wash the filter elements of the starting engine air cleaner every 1,000 service hours of
the diesel engine.
Unscrew the nut and remove the air-cleaner cover. Remove the filter elements and wash
them in diesel fuel.
3.3.14. Checking the Bolts Fastening the Cylinder Head for Tightness
Check the bolts fastening the cylinder head for tightness after completion of the running-
in and every 1,000 service hours. The check should be performed on the diesel engine warmed up
in the following order:
- remove the cap and cover of the cylinder head;
- remove the rocker-arm shaft with rocker arms and supports;
- check all the bolts fastening the cylinder head for tightness using a torque spanner in the
order shown in Fig. 21, and, if necessary, retighten them.
The tightening torque shall be [(147.57.4) lb.ft (201) kgf
.
m].
After checking the bolts fastening the cylinder head for tightening replace the rocker arm
shaft and adjust the clearance between the valves and the rocker arms.
Fig. 21 – Diagram of the order of tightening the bolts fastening the cylinder head.
3.3.15. Washing the Engine Breather
Wash the breather filter of the D-243 diesel engine and its modifications with diesel fuel
every 1,000 service hours. To do this, remove the breather housing, pull the breather from the
housing, wash it and then blow it with compressed air. Reassemble and replace the breather.
The breather of the D-245 diesel engine and its modifications needs no maintenance.
3.3.16. Replacement of the Filter Element of the Fine Fuel Filter
The service life of the filter element depends on the cleanness of the fuel used.